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Small Mersenne Prime Factors
Prime numbers of the form Mp= 2p − 1 are called Mersenne primes. For Mp to be prime, p must also be prime.
Any factor q of a Mersenne number 2p − 1 must be of the form 2kp + 1, where integer k ≥ 0. Furthermore, q must be 1 or 7 mod 8.
Exp. Prime Factor Digits Year
49667991192031779 ~1986
4966817695354398 ~1985
49670411986816419 ~1986
4967069397365538 ~1985
4967153298029198 ~1984
4967201397376098 ~1985
4967309397384738 ~1985
496741199348237 ~1983
4967411397392898
4967761301046316710 ~1989
496778399355677 ~1983
4967801298068078 ~1984
4967827894208878 ~1986
49679931589757779 ~1986
4968037298082238 ~1984
496805999361197 ~1983
4968133298087998 ~1984
4968241794918578 ~1986
49685891192461379 ~1986
4968611128190163910 ~1988
4968731397498498 ~1985
4969093298145598 ~1984
496919999383997 ~1983
4969319397545538 ~1985
4969427894496878 ~1986
Exp. Prime Factor Digits Year
496946399389277 ~1983
4969477298168638 ~1984
496963199392637 ~1983
49697512385480499 ~1987
4969793298187598 ~1984
496982399396477 ~1983
4969901298194078 ~1984
49700295566432499 ~1988
4970177397614178 ~1985
4970857298251438 ~1984
4970873298252398 ~1984
49708911292431679 ~1986
4970909695927278 ~1985
49709091491272719
497102399420477 ~1983
497120399424077 ~1983
4971257397700578 ~1985
4971437397714978 ~1985
49715831988633219 ~1986
4971691795470578 ~1986
49717091093775999 ~1986
49717091193210179
4971721298303278 ~1984
4971781298306878 ~1984
497183999436797 ~1983
Exp. Prime Factor Digits Year
4971881397750498 ~1985
497197199439437 ~1983
4972013298320798 ~1984
497203199440637 ~1983
4972151397772098 ~1985
4972199397775938 ~1985
4972327895018878 ~1986
49723331491699919 ~1986
49723491889492639 ~1986
49724691889538239 ~1986
4972481397798498 ~1985
4972573795611698 ~1986
4972691397815298 ~1985
4973021397841698 ~1985
4973141298388478 ~1984
4973347497334718 ~1985
49735672486783519 ~1987
4973821298429278 ~1984
49738674874389679 ~1987
4974071397925698 ~1985
4974157298449438 ~1984
497431199486237 ~1983
497471999494397 ~1983
497474399494877 ~1983
4974793298487598 ~1984
Exp. Prime Factor Digits Year
4974953298497198 ~1984
497503199500637 ~1983
49750392885522639 ~1987
4975213298512798 ~1984
49752471194059299 ~1986
49753191194076579 ~1986
4975457398036578 ~1985
49754936269121199 ~1988
497557199511437 ~1983
4975571895602798
4975661398052898 ~1985
4975829398066338 ~1985
497606399521277 ~1983
4976161796185778 ~1986
49761611094755439
497617199523437 ~1983
497618399523677 ~1983
4976317298579038 ~1984
4976593298595598 ~1984
497666399533277 ~1983
4976687398134978 ~1985
4976837298610238 ~1984
4976897398151778 ~1985
49768992090297599 ~1987
497696399539277 ~1983
708
GIMPS The Prime Pages FactorDb.com
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26-05-03